Author, as appears in the article.: Enric Vidal-Idiarte; Adria Marcos-Pastor; Angel Cid-Pastor; L. Martinez-Salamero
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: VIDAL IDIARTE, ENRIC; Adria Marcos-Pastor; CID PASTOR, ANGEL; MARTÍNEZ SALAMERO, LUIS
Keywords: Engineering controlled terms AC-DC power conversion power factor correction
Abstract: This study describes a digitally controlled power factor correction (PFC) system based on two interleaved boost converters operating with pulsewidth modulation (PWM). Both converters are independently controlled by an inner control loop based on a discrete-time sliding-mode (SM) approach that imposes loss-free resistor (LFR) behavior on each cell. The switching surface implements an average current-mode controller so that the power factor (PF) is high. The SM-based digital controller is designed to operate at a constant switching frequency so that the interleaving technique, which is recommended for ac-dc power conversion systems higher than 1 kW, can be readily applied. An outer loop regulates the output voltage by means of a discrete-time proportional-integral (PI) compensator directly obtained from a discrete-time small-signal model of the ideal sliding dynamics. The control law proposed has been validated using numerical simulations and experimental results in a 2-kW prototype.
Research group: Grup d'Automàtica i Electrònica Industrial
Thematic Areas: Enginyeria electrònica Ingeniería electrónica Electronic engineering
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0885-8993
Author identifier: 0000-0002-6016-4096; n/a; 0000-0001-8124-6210; n/a
Record's date: 2016-05-02
Last page: 4653
Journal volume: 31
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
First page: 4641
Publication Type: Article Artículo Article